Tacking and lasting pincers.



C. S. BODEN.

TAGKNG AND LASTING PINGBRS.

MPLIGATION FILED 00T.26, 1911.

1,090,5 14. Patented Mar. 17, 1914.

CLARENCE S. BODEN, 0F SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO BODENSAUTOMATIC HAMMER CO., A CORPORATION OF CALIFORNIA.

To aZZ whom it may concern Be it known that I, CLARENCE S. BODEN,a'citizen of the United States, and residing at San Francisco, in thecounty of San Francisco and State of California, have inparticularreference to means for supplying and driving tacks or equivalentfastenings by means of .the same implement as that which grasps theleather during the lasting operation.

The principal object of the present invention is to provide lastingpincers with means whereby one of a plurality of tacks or nails carriedbythe tool may be driven through the leather into the last, another tackor nail being automatically fed to position ready to be driven byanother blow.

Further objects of the invention are to provide certain improvements inhand operated tools ofthe character mentioned as will be hereinafterexplained. To these ends the invention consists in the construction andcombination of parts substantiallyas hereinafter described and claimed.

Of the accompanying drawings, which form a part of thisspecitcatiom-Figure 1 is aside elevation of a tool constructed accordingto myinvention, the movable member of the head being indicated by fulllines in one position, and dotted lines in another position. Fig. 2represents a sectional elevation. Fig. 3 is a plan view. Fig. 4represents a section on line 4-4 of Fig. 1 on a larger scale. Fig. 5 isa perspective view of the feeding pawl. Fig. 6 represents a section online 6.-6 of'Fig. 1.

Similar reference characters indicate the' same or similar parts in allof the views.

As usual with tools of the pincer type, two handles are provided, thehandle 10 projecting rigidly from the portion 11 of the head of thetool. Movably connected with the rigid part 11 of the handle is the part12 which has side pieces or plates that overlap the member or'part l1,the side pieces or plates preferably fitting suitable ways carried bythe other portion 11 of the head, as best shown in Figs. 1 and 3. Theside pieces or plates are formed with slots Specification of LettersPatent.

Application filed October 26, 1911.

Patented Mar. 17, 1914. seriai No. 656,950.

13 through which into the part 11.

The part 12 is provided with a substantially central aperture 15,through which the tacks are driven. Secured to the member 11 of the headis a driver 16, the lower end offsaid driver being in alinement with theaperture 15. Slidably mounted in the member 11 is a plunger 17 which ispro- ]ected by means of a spring 18. The lower end of said plunger bearsagainst a suitable shoulder or ledge provided therefor on the movablepart 12 of the head, the said spring 18 and plunger 17 serving to tendto hold the two members of the head in the relative position indicatedin Fig. 2 and by dotted lines in Fig. 1.

The member 11 of the head is provided with a projection or lug 19 havingan inclined face 20, the latter constituting a cam to actuate thefeeding pawl in one direction, preliminary to feeding, as presentlydescribed.

Mounted to reciprocate in a transverse opening on the member 12 of thehead is a pawl 21, saidpawl having one side face provided with a seriesof teeth 22 (Fig. 5) adapted to engage a plurality of tacks a carried bya strip Z) the rear end of said strip being supported in a mannerhereinafter described.

The pawl 21 is formed with a recess or channel 23 extendinglongitudinally thereof, and a spring 24 is located in said channel andbears against one end of it, the other end of said spring being held bya lug 25 that is removably carried by the member 12 of the head in amanner hereinafter deguiding screws 14 pass scribed. The spring 24actuates the pawl in its feeding direction, to the extent determined by-a stop which may consist of the head 26 of a screw (Fig. 4) mounted ina hole therefor in the member 12. Extending transversely of the member12 of the head,

and above the guideway for the pawl, is a transverse aperture 27 whichserves as a 'guide for the tack strip b, said strip guide being openalong a portion of its under side to permit the tacks a to be fedby thepawl 21 to a position where they will be successively in alinement withthe driver 16.

The pawl 21 is normally held so that its teeth 22 will engage aplurality of the nails as best shown in Fig. 4 by means of the Vspring28. This spring 28 readily yields to permit the end of the strip to beinserted to place until the front nail of said strip is under the end ofdriver 16.

The tacks are carried by means of a paper strip b, the heads of saidtacks being so attached to the paper strip that the tacks can be readilypushed out by the driver. In order to prevent any possibility of thepaper stria retreating during the operation hereina ter described, Ipreferably employ a suitable spring detent such as indicated at 29 inFig. 2, said detent engaging the up per surface of the strip Z).

The member 11 of the head is formed with an aperture 30, across which ismounted a pivot 31 for the movable pincer jaw 32 which coperates with afixed pincer jaw 33, projecting from the member 11. The movable pincerjaw is provided with a handle 34 which is hollow, to contain the tackstrip, said strip being so mounted in the hollow handle that when thesaid handle 34 is moved during the use of the two as pincers, the tackstrip will not be shifted as to its relationship with the feedingmechanism with the member 12 of the head.

The member 12 is provided with a notch or recess 35 (Fig. 1) adapted toreceive the end of a latch lever 36 connected to a lug 37 of the handle10 by a pivot 38, and having its other end provided with a nger piece39. A leaf spring 40 secured to the head as by a screw 41 has its freeend loearing against :the latch lever 36, so as to hold the 4tip thereof'n the notch or recess 35 and to cause it to enter said notch wheneverthe latter is in position to receive it.

The lug 25 for one end of the spring 24 (Fig. 4) is carried by a block42 which partially enters the recess for the pawl, said block having aspring arm 43 bearing a lug 44 which engages a locking recess 45 formedin one side of the member 12 of the head. This last mentioned structureenables the feeding mechanism to be quickly dis-assembled in the eventof the choking up of the passage. To do this, it is only necessary tospring the arm 43 outwardly `to release the lug 44 from the recess 45,after which the block 42 and its lug 25 can be removed to 'permit vthe`spring 24 and the pawl 21 to be slipped out of the chamber therefor inthe movable member of the head.

It will be obvious of course, that the tool can *be used in the mannerof ordinary last ing pincers and without being aected in any way by thefact that the tool is also a magazine hammer for driving tacks-singly.When Ea tack is to be driven, the operator grasping either one or bothof the handles, swings the tool with the lower portion of the movablemember 12 toward the work asia hammer head.

When the member 12 contacts with the work, the momentum of the member 11causes the driver 16 toV detach the end tack Y from the strip and driveit through the aperture 15 into the work. After the tack has beendetached and driven part way through the aperture 15, the inclined edgeor cam 2O of the lug 19 slides downwardly across the end of the pawl 21,so as to slide said pawl toward the right of Fig. 2 far enough to causethe teeth 22 ofthe pawl to take a fresh hold of a plurality of tacks,but without feeding the strip. The spring 28 yields suf iiciently topermit the pawl 20 to swing when the latter is moving as just described,so that the ends of the teeth will pass over the tacks remainingattached to the strip. The fact that the driver 16 has penetrated thetack strip 7) before the pawl 21 begins to move rearwardly to preparefor the next feed by taking a fresh hold tends to prevent such rearwardmovement of the pawl from causing the tack strip to retreat. In effecttherefore, the driver 16 acts as a detent to preventbackward movement ofthe tack strip. In case, however', the mutilation of the paper strip bythe driver should be such that said driver would not act definitely as adetent, the spring detent 29 will abso Y lutely prevent backwardmovement of said strip. As soon as the tool is raised after havingdriven a tack, the spring 18 acts to return the two partsof the head totheirV relative positions illustrated in Fig. 2, and

as the cam lug 19 passes away from the end of the pawl 21, the spring 24acts on the pawl to advance the tack strip to bring another tack intoalinement with the driver16, ready for another Ytack-driving operation.

" During the use of the tool as pincers,.it is desirable that the twomembers of the head shall` be locked against any relative slidingmovement and it is preferable that the locking shall be automaticaftervevery tack-driving blow so that'the tool will be normally incondition for use as pincers. As indicated by full lines in Fig. 1, theinner end of the latch lever 36 is in the notch or recess `35 of themovable member 12,and is held -therein by spring 40. Whenever theoperator wishes to drive a tack, he first*V presses the finger-piece 39inwardly toward the handle 10 so as to release the other end of lever 36from locking recess 35 and `then the spring 18, acting through plunger17, instantly shifts the movable member to the position indicated bydotted lines in Fig. 1, and by full lines in Fig. 2. The tack drivingoperation then causes the parts to assume their relative positionsindicated by full lines in Fig. 1, the spring 40 instantly forcing theend of the lever 36 into recess 35, so as to automatically lock the twomembers of the head so that no tack-driving operation can again beveffected until'the operator firstactuates the latch lever 36. Ofcourse, while the two members of the head are locked in inoperativepositions as just described, either end of the compound hcad of the toolcan be used as a hammer, swinging the same like a hammer either by meansof handle 10, or by grasping both handles l0 and 34.

I claim 1. A tool of the character described, comprising a pair ofcrossed members pivoted together adjacent one end forming'a pincer, thatpart of each member lying on one side of the pivotal point forming ajaw, and that part of each member lying on the other side of the pivotalpoint forming a handle, tack driving means arranged on one side of saidmembers at the pivotal point, and a tack tape magazine arranged in thehandle part of the other member.

2. In a combined pincer and hammer, the

combination of a pair of jaws hinged together with crossed handles, onejaw and handle carrying a tack-driving head, the other jaw handleproviding a tack-tape magazine, said head comprising two members movablyconnected, one of said members forming a slide and the other membercarrying a driver working through the slide, and means by which the tapefrom said magazine is fed to the head with the tacks in line with thedriver.

In testimony whereof I have ailixed my signature, in presence of twowitnesses.

CLARENCE S. BODEN.

l/Vitnesses:

A. W. HARRISON, I. W. PEzzE'rTI.

Copies o! this patent may be obtained for ve cents each, by addressingthe Commissioner o! Patent,

Washington, D. C."

